Michael Explains it All - Pirastro Obligato - YouTube
Pirastro Obligato Double Bass String, A
Obligato Solo Tuning Upright Bass Strings
15.5" Hans Otto 401
Set - Medium Scale Pirastro Obligato Strings For 15.5” to 16.5” Violas (421021 4/4) - Promenade Music
Obligato Violin strings - buy at inexpensively - Laubach Gold Rosin Store
Tim Wright Violins on X: "Love that new string feel! This gorgeous Amatese Joseph Hill from the 1760s has found its perfect match in a set of Obligato strings 😀 🎻 https://t.co/ob6dTOmYne" /
Fiddlerman Master Violin with Obligato Strings for Alicia - YouTube